Centrifugal oil-burner.



0 M. A. PESLER CENTR'IPUGAL OIL BURNER.

APPLICATION FILED 1211.13, 1910.

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In afsnlirulnfll Patented May 21, 1912.

WITNESSES.

. Specication of Letters Patent.

ort-isUBNER.

Patented May 21, 1912.

Application led Apri113, 1910. Serial No. 555,162.

To all whom 'it may concern:

Be it known that I, MILTON A. FESLER, a citizen of the United States,residing at San Francisco, in the county of San Francisco and StateofCalifornia, have invented new and useful Improvements in CentrifugalGil-Burners, of which the following is a specification.

The present invention relates to improvements in centrifugal oilburners, the object of thev invention being to provide an oil yburner ofthis character which shall be exceedingly eiicient and' economical.

In the accompanying drawings, Figure 1 isa sectional view-of a furnaceequipped with my improved oil burner; Fig. 2 is a vertical section,parts being shown in side elevation, of the oil burner proper, Fig. 3 isa partial horizontal section on the line 3-3 of Fig. 2.

Referring to the drawing, 1 indicates a furnace supported on a suitablebase 2, upon which rests a standard 3, fromwhich prolV j ects laterallyupper and lowerbearings 4,' 5. Supported upon said bearings are bushings6, in which rotates a vertical shaft 7 carrying near its lower end apinion 8, driven by'a gear wheel 9, on a shaft 10, rotating by-anysuitable meansin a horizontal bushing 11, throughl said standard 3. Thegears 8 and 9 and the bearings 4 and 5 are surrounded by a casing 132.Upon the reduced lthreaded end of said sha-ft 7 is screwed a spreader12, having an upper plate 13, a lower plate 14, and an intermedi# ateplate 15. All of said plates are spaced fromleach other, and are joinedby radial vertical webs 16, of which there may be any suitable number.The upper plate 13 is convex on its ,upper surface, and the lowerconcaved surface is formed, as at 17, so as to connect with said shaftwithout any sharp angles or corners. The lower /plate 14 is convex onits lower surface, and is extended centrally downwardin the form of averti-l cal tube 18. The intermediate plate 15 is plane, except in thecenter, where it is extended ldownward in a tubular' form as shown at19, the lower edge thereof being extended inwardly and then upwardly toform an .annular channel 20. The upper and lower plates 13, 14,approachv at their peripheries in close proximity to the pe- 'riphery ofthe intermediate plate.` There are thus formed between said tubulardown- Ward extensions and shaft air conduits 22,

23. An -oil supply pipe, 24,-controlled by a valve 25, extends upwardlyparallel with the shaft, and is bent over to discharge into the annularchannel 20. Surrounding the outer tubular extension is an' upperpartition 26 concave on its upper side, and surrounding the shaft isalower similarly concave part-i-` tlon 27 extending substantially at auniform distance from the upper partition. The air passing into said airconduits 22, 23, is drawn from the space 28 between said partitions, andin turn. is supplied' to said space 28 by means of pipes 29 leading fromthe interior of a sleeve 30 surrounding the flue'31 from the furnace andsupplied with air through suitable openings 32, one of which is shown indotted linesvin Fig. l.

The operation of the apparatus is as follows z-The shaft beingmaintained in rotation at high speed, the oil, supplied by the pipe 24to the channel 20, flows, by the centrifugal force due to the high speedof the burner, upward over the intermediate plate 15 and out betweensaid plate 15 and plate 13, its motion being directed outward by meansof the webs 16. The air -supplied to the interior of the sleeve 30 andaround the flue 31 becomes highly heated, and flows by the pipes 29 tothe space 28 between the upper and lower partitions 26, 27, and is thussupplied to the annular conduits 22, 23. It then iiows out over theedges of said plateand mixes with the oil, which moreover is atomized bythe centrifugal force resulting from-the high speed of the rotatingparts.

I claim 1. The combination of a vertical shaft, upper, lower andintermediate plates carried by said shaft, the peripheries of saidplates approaching into close proximity to each other, centrallydisposed conduits leading respectively into the spaces between theupper-and intermediate plates and the in` termediate and lower plates,an oil pipe ex- .tending upward and discharging into one of saidconduits, and means fr-rotating said shaft, substantially as described.

2. The combination of a vertical shaft, upper, lower-and intermediateplates carried by said shaft, radial vertical webs between said plates,the peripheries of said plates approaching into close proximity to eachother, centrally disposed conduits lead'- ing respectively into thespaces between the upper and intermediate plates and the inter- Imediate and lower plates, an oil pipe extending upward and discharginginto one of sald conduits, and means for rotating sald shaft,substantially as described.

5 3. The combination of a vertical shaft,

upper, lower and intermediate plates carried by said shaft, theperipheries of said plates approaching into close proximity to eachother, the intermediate and the lower plates having depending tubularextensions, and one of said extensions being formed with an annularchannel to receive a supply of oil,

' an oil pipe extending upward and discharging into said channel, andmeans for rotating said shaft, substantially as described.

5.'The combination with a furnace, of a vertical shaft, upper, lower andintermediate plates carried by said shaft, the peripheries of saidplates approaching into close proximity to each other, Athe intermediateand the lower' plates having depending tubular extensions to form anannular airsupply conduit, and one of, said extensions being formed withan annular channel to receive a supply of oil, an oil pipe extendingupward and discharging intoI said channel, partitions beneath saidburner, the space between the'partitions opening into said air supplyconduit, a pipe for conducting the air to said space, and'means wherebythe heat of the products of combustion of the' furnace heats said air,substantiallyl as described.

6..1`hecombination with/a furnace, of a vertlcal shaft, upper, lower andinterme- -diate plates carried by said shaft, the peripheries of saidplates approaching into nclose proximity to each other, the intermediateand the lower plates having depending *A tubular extensions to form anannular air x an oil pipe extending upward and dischargsupply conduit, asleeve surrounding the flue of the furnace, pipes leading from saidsleeve to said space, and means for rotat ing said shaft, substantiallyas described.

7. The combination of a vertical shaft, a plate carried by said shaft,upper and lower plates, respectively above and below said first-namedplate, the peripheries `of all of said plates approaching into closeproximity to each other, centrally disposed conduits leadingrespectively into the spaces between the upper and intermediate plates,and the intermediate and lower plates, an oil pipe extending upwardlyand discharging into one of said conduits, and means for rotating theshaft.

8. The combination of a vertical shaft, a plate carried by said shaft,upper and lower plates, respectively above and lbelow said first-namedplate, radial vertical webs secured to said first-named plate, theperipheries -of said plates approaching into close proximity to eachother, cent-rally disposed conduits leading respectively into the spacesbetween the upper and intermediate plates, and the intermediate andlower plates, an oil pipe extending upward and discharging -into one ofsaid conduits, and means for rotating said shaft.

9. The combination of a vertical shaft, a plate carried by said shaft,upper and lower plates respectively above and below said first-namedplate, the peripheries of all of said plates extending into closeproximity to each other, an oil pipe extending upwardly between saidshaft and an inner edge of one of said lates, and discharging upon aninner margin of said plate, and means for rotating said shaft.

In testimonyv whereof I have hereunto set my hand in the presence of twosubscribing witnesses. g

. MILTON A. FESLER.. Witnesses:

F. M. WRIGHT, D. R. RICHARDS. p

